Home / 15,299.87-21,114.52-8,925.44

Finding the Fourth Proportional to 15,299.87, 21,114.52 and 8,925.44

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Solution

The fourth proportional to 15,299.87, 21,114.52 and 8,925.44 is: 12,317.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,299.87 : 21,114.52 = 8,925.44 : x
  2. Step 2: Convert to fraction form
    15,299.87/21,114.52 = 8,925.44/x
  3. Step 3: Cross multiply
    15,299.87x = 21,114.52 × 8,925.44
  4. Step 4: Simplify right side
    15,299.87x = 188,456,253.50
  5. Step 5: Solve for x
    x = 188,456,253.50/15,299.87
  6. Step 6: Final answer
    x = 12,317.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.